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EN 1.4458 Stainless Steel vs. EN 1.4507 Stainless Steel

Both EN 1.4458 stainless steel and EN 1.4507 stainless steel are iron alloys. Both are furnished in the solution annealed (AT) condition. They have 79% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4458 stainless steel and the bottom bar is EN 1.4507 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
25
Fatigue Strength, MPa 150
410
Impact Strength: V-Notched Charpy, J 67
90
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 510
840
Tensile Strength: Yield (Proof), MPa 190
590

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 430
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 30
21
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.4
4.0
Embodied Energy, MJ/kg 75
55
Embodied Water, L/kg 200
180

Common Calculations

PREN (Pitting Resistance) 30
41
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
190
Resilience: Unit (Modulus of Resilience), kJ/m3 89
850
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17
30
Strength to Weight: Bending, points 18
25
Thermal Diffusivity, mm2/s 4.2
4.0
Thermal Shock Resistance, points 12
23

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 19 to 22
24 to 26
Copper (Cu), % 0 to 2.0
1.0 to 2.5
Iron (Fe), % 40.2 to 53
56.4 to 65.8
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.0 to 2.5
3.0 to 4.0
Nickel (Ni), % 26 to 30
6.0 to 8.0
Nitrogen (N), % 0 to 0.2
0.2 to 0.3
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.025
0 to 0.015